505134688 has 12 divisors (see below), whose sum is σ = 994483980. Its totient is φ = 252567328.

The previous prime is 505134659. The next prime is 505134689. The reversal of 505134688 is 886431505.

It is a super-2 number, since 2×505134688² = 510322106041714688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505134688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505134689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7892698 + ... + 7892761.

It is an arithmetic number, because the mean of its divisors is an integer number (82873665).

Almost surely, 2^505134688 is an apocalyptic number.

It is an amenable number.

505134688 is a deficient number, since it is larger than the sum of its proper divisors (489349292).

505134688 is a wasteful number, since it uses less digits than its factorization.

505134688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15785469 (or 15785461 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 505134688 is about 22475.2016231223. The cubic root of 505134688 is about 796.4082146482.

The spelling of 505134688 in words is "five hundred five million, one hundred thirty-four thousand, six hundred eighty-eight".